getting slower as I drive - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Rich Druash · 05-01-2005, 12:30 PM

When I first start driving my car it runs pretty strong, but after 20-30 minutes it gets slower and slower. If I drive it hard it will get slower after only 5-10 minutes. The other night after racing a mustang my turbo was glowing red. I checked my timing and when I set my gun at advance 14(stock), it lines up with the timing mark all the way to the right on the crank pulley, If I set the gun at 0 it will be a good amount to the right of the last timing mark to the right. Is this timing off? Could my turbo be going bad? I've had 3 turbo cars and never had any problem like this. It seems like the engine is getting too hot, but the temp guage says it's cool. If anyone can help me with this I would really appreciate it.

----my set up
redtop sr20
greddy vspl front mount intercooler
hks exhaust
trust downpipe/turbo outlet/ catco racecat
spec stage 3 clutch
walboro 255 fuel pump
runing 12-13 pounds of boast with no fuel management

[GoaTSLonG] · 05-01-2005, 01:06 PM

13psi on stock injectors is a no no

WeldingHank · 05-01-2005, 03:34 PM

sounds like your timing is wayyyy off.

***S14DB*** · 05-01-2005, 04:01 PM

Your timing is fubar and your spraying fuel into your turbo and it's burning there.

kandyflip445 · 05-01-2005, 04:34 PM

Heat soak!!!!

TheSparo · 05-01-2005, 06:07 PM

you did disconnect the tps sensor when you check the timing correct? im almost positive you must do this

Rich Druash · 05-02-2005, 10:45 AM

where is the tps sensor, I'm not used to timing coil packs

TheSparo · 05-02-2005, 11:30 AM

it stands for the throttle position sensor, it is right around the throttle body, near the butterfly if i remember correctly

sr240mike · 05-02-2005, 08:40 PM

15 degrees is the second mark from the right. Set it there and see how it goes.

05-01-2005, 12:30 PM	#1
Rich Druash Leaky Injector Join Date: Mar 2005 Location: Virginia Posts: 52 Trader Rating: (0) Feedback Score: 0 reviews	getting slower as I drive When I first start driving my car it runs pretty strong, but after 20-30 minutes it gets slower and slower. If I drive it hard it will get slower after only 5-10 minutes. The other night after racing a mustang my turbo was glowing red. I checked my timing and when I set my gun at advance 14(stock), it lines up with the timing mark all the way to the right on the crank pulley, If I set the gun at 0 it will be a good amount to the right of the last timing mark to the right. Is this timing off? Could my turbo be going bad? I've had 3 turbo cars and never had any problem like this. It seems like the engine is getting too hot, but the temp guage says it's cool. If anyone can help me with this I would really appreciate it. ----my set up redtop sr20 greddy vspl front mount intercooler hks exhaust trust downpipe/turbo outlet/ catco racecat spec stage 3 clutch walboro 255 fuel pump runing 12-13 pounds of boast with no fuel management

05-01-2005, 01:06 PM	#2
[GoaTSLonG] Zilvia Junkie Join Date: Feb 2003 Location: Long Island, NY Posts: 311 Trader Rating: (2) Feedback Score: 2 reviews	13psi on stock injectors is a no no __________________ WRECKED.

05-01-2005, 03:34 PM	#3
WeldingHank Leaky Injector Join Date: Feb 2004 Location: Massachusetts Posts: 137 Trader Rating: (0) Feedback Score: 0 reviews	sounds like your timing is wayyyy off. __________________ 1989 240sx:CA18DET My Cardomain

05-01-2005, 04:34 PM	#5
kandyflip445 Post Whore! Join Date: Sep 2002 Location: Arden, NC Age: 36 Posts: 4,460 Trader Rating: (1) Rides Gallery: kandyflip445 Feedback Score: 1 reviews	Heat soak!!!! __________________ My 240 vBgarage

05-01-2005, 06:07 PM	#6
TheSparo Zilvia FREAK! Join Date: Sep 2002 Location: Athens/Chattanooga/ Cookeville/Morristown, TN Age: 36 Posts: 1,141 Trader Rating: (0) Feedback Score: 0 reviews	you did disconnect the tps sensor when you check the timing correct? im almost positive you must do this __________________ 89 240 SR powered... ummm i promise its stock

05-01-2005, 04:01 PM	#4
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Your timing is fubar and your spraying fuel into your turbo and it's burning there.

05-02-2005, 10:45 AM	#7
Rich Druash Leaky Injector Join Date: Mar 2005 Location: Virginia Posts: 52 Trader Rating: (0) Feedback Score: 0 reviews	tps sensor where is the tps sensor, I'm not used to timing coil packs

05-02-2005, 11:30 AM	#8
TheSparo Zilvia FREAK! Join Date: Sep 2002 Location: Athens/Chattanooga/ Cookeville/Morristown, TN Age: 36 Posts: 1,141 Trader Rating: (0) Feedback Score: 0 reviews	it stands for the throttle position sensor, it is right around the throttle body, near the butterfly if i remember correctly __________________ 89 240 SR powered... ummm i promise its stock

05-02-2005, 08:40 PM	#9
sr240mike Zilvia FREAK! Join Date: Apr 2004 Location: California, Norcal biiaatch Posts: 1,185 Trader Rating: (0) Feedback Score: 0 reviews	15 degrees is the second mark from the right. Set it there and see how it goes. __________________ TWO IN THE COOT, ONE IN THE POOT

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